Finding the Third Proportional to 711,042 and 1,555,111.50

Step by Step Solution

1. Step 1: Write the proportion equation
   711,042 : 1,555,111.50 = 1,555,111.50 : x
2. Step 2: Convert to fraction form
   711,042/1,555,111.50 = 1,555,111.50/x
3. Step 3: Cross multiply
   711,042x = 1,555,111.50 × 1,555,111.50
4. Step 4: Simplify right side
   711,042x = 2,418,371,777,432.25
5. Step 5: Solve for x
   x = 2,418,371,777,432.25/711,042
6. Step 6: Final answer
   x = 3,401,165.86